The probability that a normally distributed data with a mean of μ and a standard deviation of σ is less than a value x is given by:
Given that μ = 16.5 and σ = 0.804984 and that the probability that the <span>mean oil-change time being at or below the
sample mean for which there is an area of 0.10 to the left under the
normal curve, then:
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Answer:
Please read the step by step.
Step-by-step explanation:
184.76 - 45.50 = 139.26.|
If she wants to buy it in six weeks and only needs $139.26 you would need to divide $139.26 by 6 to see how much money she would have to make per week to meet the mark.
$139.26 divided by 6 is $26.21
Therefore Kallie would need to make $26.21 per week to reach her goal.
Looking at the equations none of the provided answers would even come close to the answer above.
1. 139.26 - 6 is not saying if it is a 6.00 or a 0.06 so it could be 133.26 or 139.20 but that wouldn't make any since involving the question.
2. 6 multiplied by 139.26 would be 835.56 but no where was it asked to multiply.
3. 139.6 - 8 isn't even brought up in the question above.
4. 45.50 x 6 is 273 and that would be too much unless tax is unreasonably high but even then it didn't mention what the tax would be. (it would be 47.76% on the dot btw)
In that case your closest bet would have to be 6x45.50 but your teacher is kind of insane to think a middle schooler should have to figure out how much a ungodly sales tax would be out of all of this.
Good luck on your assignment, I am here if you need anything else.
Answer:
what subject is this for
Step-by-step explanation:
3 hours = 180 minutes.
180 / 30 = 6
22 * 6 = 132
Koby can work about 132 maths problems in 3 hours.
